Quarter	National Currency Units per US Dollar
1960-01-01	4.333733333328080
1960-04-01	4.326100000000830
1960-07-01	4.310333333337140
1960-10-01	4.307133333335520
1961-01-01	4.316066666666300
1961-04-01	4.324833333337060
1961-07-01	4.316600000000710
1961-10-01	4.320566666661760
1962-01-01	4.328333333333530
1962-04-01	4.330233333336460
1962-07-01	4.321100000001020
1962-10-01	4.318033333334220
1963-01-01	4.326199999995880
1963-04-01	4.325833333326350
1963-07-01	4.318766666668430
1963-10-01	4.316100000001220
1964-01-01	4.322766666669240
1964-04-01	4.317433333334820
1964-07-01	4.320766666671260
1964-10-01	4.316066666666300
1965-01-01	4.330799999996090
1965-04-01	4.341666666669580
1965-07-01	4.319599999997690
1965-10-01	4.318933333328460
1966-01-01	4.334066666662690
1966-04-01	4.320399999996880
1966-07-01	4.324233333327960
1966-10-01	4.326900000000020
1967-01-01	4.333433333328380
1967-04-01	4.318966666663380
1967-07-01	4.334266666662490
1967-10-01	4.326599999995480
1968-01-01	4.341799999999540
1968-04-01	4.322799999999310
1968-07-01	4.301766666666180
1968-10-01	4.298933333334090
1969-01-01	4.313333333334110
1969-04-01	4.321033333331190
1969-07-01	4.304766666663150
1969-10-01	4.313466666664070
1970-01-01	4.308199999994640
1970-04-01	4.309466666672960
1970-07-01	4.304100000003630
1970-10-01	4.320800000001330
1971-01-01	4.301233333336620
1971-04-01	4.172900000000180
1971-07-01	4.035200000003290
1971-10-01	3.951666666670160
1972-01-01	3.866666666663760
1972-04-01	3.845666666670390
1972-07-01	3.776999999997010
1972-10-01	3.787666666665850
1973-01-01	3.455960709445560
1973-04-01	3.153828976152680
1973-07-01	2.935878053751230
1973-10-01	3.130803247146990
1974-01-01	3.202461998161570
1974-04-01	2.977514518720830
1974-07-01	2.981473324835710
1974-10-01	2.752901246372840
1975-01-01	2.493857144856960
1975-04-01	2.519252170732010
1975-07-01	2.665429277464620
1975-10-01	2.649033830304080
1976-01-01	2.578624509843650
1976-04-01	2.494258443170470
1976-07-01	2.479269677942450
1976-10-01	2.446171928621820
1977-01-01	2.520710463693340
1977-04-01	2.511022710115710
1977-07-01	2.398035735121870
1977-10-01	2.184809903389790
1978-01-01	1.929930640023850
1978-04-01	1.915720915252510
1978-07-01	1.678903174778770
1978-10-01	1.628449119068980
1979-01-01	1.675269242308360
1979-04-01	1.713515896232510
1979-07-01	1.639292724267610
1979-10-01	1.624633769753240
1980-01-01	1.665125400301010
1980-04-01	1.684373681706600
1980-07-01	1.632606121359760
1980-10-01	1.722301212452950
1981-01-01	1.897115153977360
1981-04-01	2.035510530283580
1981-07-01	2.097830594016020
1981-10-01	1.834752737271660
1982-01-01	1.873891957514530
1982-04-01	1.993429378668470
1982-07-01	2.113489389419550
1982-10-01	2.137918978662140
1983-01-01	2.015216419209770
1983-04-01	2.074965204861750
1983-07-01	2.147323229268170
1983-10-01	2.160053678921290
1984-01-01	2.195883766225240
1984-04-01	2.246892768796920
1984-07-01	2.440213467858050
1984-10-01	2.515839997598440
1985-01-01	2.756090945289250
1985-04-01	2.591214994589490
1985-07-01	2.348724308138970
1985-10-01	2.133726530958650
1986-01-01	1.976921818484440
1986-04-01	1.866965971716790
1986-07-01	1.685542857701910
1986-10-01	1.664319798656790
1987-01-01	1.545891972021620
1987-04-01	1.490763668667400
1987-07-01	1.523928918206670
1987-10-01	1.402333268183480
1988-01-01	1.374575996398930
1988-04-01	1.418968762022460
1988-07-01	1.564186729393990
1988-10-01	1.494730303813890
1989-01-01	1.580456271341870
1989-04-01	1.695590148730710
1989-07-01	1.659909253617330
1989-10-01	1.606043851546690
1990-01-01	1.505043220006680
1990-04-01	1.442643017980990
1990-07-01	1.335498039108330
1990-10-01	1.272254301494390
1991-01-01	1.309252622108610
1991-04-01	1.473808330486690
1991-07-01	1.517643188846120
1991-10-01	1.434002343710740
1992-01-01	1.455285610213420
1992-04-01	1.477047100381840
1992-07-01	1.302095592796030
1992-10-01	1.388631022251700
1993-01-01	1.505120150067590
1993-04-01	1.460316906971600
1993-07-01	1.476996967286780
1993-10-01	1.466999333762970
1994-01-01	1.452186681090590
1994-04-01	1.408204022491950
1994-07-01	1.310762775408760
1994-10-01	1.297112321268770
1995-01-01	1.243222732947890
1995-04-01	1.154263424924960
1995-07-01	1.180424530870810
1995-10-01	1.150410908641240
1996-01-01	1.190795968793340
1996-04-01	1.243828332613380
1996-07-01	1.222647553119440
1996-10-01	1.287255638371290
1997-01-01	1.436911450216450
1997-04-01	1.444727907647910
1997-07-01	1.484016749878650
1997-10-01	1.434412845156370
1998-01-01	1.476121212121210
1998-04-01	1.492100158730160
1998-07-01	1.469293296317210
1998-10-01	1.361099567099570
1999-01-01	1.426363586956520
1999-04-01	1.514432287157290
1999-07-01	1.527471967736840
1999-10-01	1.542663986952650
2000-01-01	1.628002864140830
2000-04-01	1.673483844156360
2000-07-01	1.707569316769070
2000-10-01	1.742717496423480
2001-01-01	1.662503285839630
2001-04-01	1.749677414594090
2001-07-01	1.690220979657030
2001-10-01	1.645388196692270
2002-01-01	1.680808317004770
2002-04-01	1.592702242089550
2002-07-01	1.487538177094730
2002-10-01	1.466036951911630
2003-01-01	1.365782434825090
2003-04-01	1.335404611503160
2003-07-01	1.371955907831800
2003-10-01	1.306121865460170
2004-01-01	1.254690128995330
2004-04-01	1.276455345205540
2004-07-01	1.256781710074990
2004-10-01	1.183043743568750
2005-01-01	1.181920713125860
2005-04-01	1.226935889232100
2005-07-01	1.273905937200480
2005-10-01	1.300991771869600
2006-01-01	1.296151258663690
2006-04-01	1.244156731201280
2006-07-01	1.237359012890120
2006-10-01	1.235149816519810
2007-01-01	1.232859311347380
2007-04-01	1.222572591210710
2007-07-01	1.198671882874810
2007-10-01	1.145383189984360
2008-01-01	1.068291313128180
2008-04-01	1.032152444822590
2008-07-01	1.073738503042850
2008-10-01	1.160337681159420
2009-01-01	1.149854545454550
2009-04-01	1.111406926406920
2009-07-01	1.061795282012670
2009-10-01	1.021338979860720
2010-01-01	1.057036335403730
2010-04-01	1.108660894660890
2010-07-01	1.031212121212120
2010-10-01	0.973926846100759
2011-01-01	0.941507487922705
2011-04-01	0.870057720057720
2011-07-01	0.825141602358994
2011-10-01	0.912152236652237
2012-01-01	0.920890331890332
2012-04-01	0.936559696342305
2012-07-01	0.961935243741765
2012-10-01	0.930534882991404
2013-01-01	0.930365389924086
2013-04-01	0.942477792207792
2013-07-01	0.931996812848987
2013-10-01	0.903225974025974
2014-01-01	0.892939920634921
2014-04-01	0.888853391053391
2014-07-01	0.914034117573248
2014-10-01	0.964361449275362
2015-01-01	0.952415303030303
2015-04-01	0.941840476190476
2015-07-01	0.964244306418220
2015-10-01	0.990868511198946
2016-01-01	0.993909799861973
2016-04-01	0.970390331890332
2016-07-01	0.975579776021080
2016-10-01	1.000618903318900
2017-01-01	1.004165750988140
2017-04-01	0.985374064558630
2017-07-01	0.962616563146998
2017-10-01	0.986829653679654
2018-01-01	0.947362911725955
2018-04-01	0.984719530710836
2018-07-01	0.983809426877471